Adjustable modular form system and method for rectilinear concrete column form

ABSTRACT

A modular form panel and a method of employing the same are provided for use when forming a rectilinear concrete column form. The form panel comprises a first side edge and a second side edge, with the first side edge having a plurality of attachment holes arranged in a plurality of vertically oriented gage lines. The form panel also includes a top edge and a bottom edge extending between the first and second side edges, and has a generally planar interconnecting skin, with the skin having a plurality of attachment holes arranged in a plurality of vertically oriented gage lines. Thus, a plurality of like panels may be arranged to define a rectilinear column form of predetermined cross-sectional dimensions by securing the first edge of the panel to the skin of an adjacent like panel by attaching a selected one of the first edge gage lines to a selected one of the skin gage lines on the adjacent like panel.

FIELD OF THE INVENTION

The present invention relates to form panels for forming concretecolumns and to a forming system employing such form panels.

BACKGROUND OF THE INVENTION

In concrete construction modular forming systems for forming concretewalls are generally well known in the art. Modular forming systems forconcrete walls are generally favored by contractors because such modularsystems permit the rapid assembly, disassembly, and reuse of the forms,thus offering significant savings in terms of time, labor, andmaterials. Moreover, the use of a discrete number of pre-manufacturedwall form sections permits the construction of wall having differentheight, length, and thickness simply by choosing modular sections of thedesired size.

When constructing concrete buildings or other structures, it would bedesirable to extend the cost savings afforded by modular construction ofwall forms to the modular construction of column forms. Modularconstruction of concrete column forms would cut waste by saving concretedue to the fact that each individual column could be constructed to itsown specifications, rather than overbuilding some of the columns to takeadvantage of existing form sizes. Ideally, such a modular column formsystem would minimize surface irregularities, which in turn improves theconcrete cover over the reinforcing steel. Such a modular column formwould also accommodate high pour pressures with minimal externalstiffening or reinforcement.

SUMMARY OF THE INVENTION

In accordance with a first aspect of the invention, a modular form panelis provided for use when forming a rectilinear concrete column form. Theform panel comprises a first side edge and a second side edge, with thefirst side edge having a plurality of attachment holes arranged in aplurality of vertically oriented gage lines. The form panel alsoincludes a top edge and a bottom edge extending between the first andsecond side edges, and has a generally planar interconnecting skin, withthe skin having a plurality of attachment holes arranged in a pluralityof vertically oriented gage lines. Thus, a plurality of like panels maybe arranged to define a rectilinear column form of predeterminedcross-sectional dimensions by securing the first edge of the panel tothe skin of an adjacent like panel by attaching a selected one of thefirst edge gage lines to a selected one of the skin gage lines on theadjacent like panel.

In further accordance with a preferred embodiment, the first side edgeof the panel includes an edge stiffener. Preferably, the edge stiffeneris an L-shaped member, and further may be widened or otherwise beconstructed to form an abutting surface adapted for abutting contactwith the skin of the adjacent panel.

Still preferably, the panel first edge gage lines are spaced apart afirst distance and the skin gage lines are spaced apart a seconddistance, with the first distance being less than the second distance.In a preferred embodiment, the panel first edge gage lines are spacedapart a distance of between about 2 inches and about 3 inches, and theskin gage lines are spaced apart a distance of between about 4 inchesand about 6 inches.

When the panel is assembled with like panels, at least one of the skingage lines may be unused, and thus a plug may be provided which isadapted for placement in any unused attachment holes. The unusedattachment holes will preferably include a countersunk portion, and theplug preferably includes a shank and a head. The head of the plug willinclude an end surface and will be sized to fit in the countersunkportion so that the plug head cooperates with the skin to form agenerally uninterrupted planar surface.

The panel will preferably includes a top stiffener adjacent the top edgeand a bottom stiffener adjacent the bottom edge, with the top and bottomstiffeners extending between the first and second side edges. The panelmay also include at least one intermediate stiffener extending betweenthe first and second side edges. Preferably, each of the top, bottom,and intermediate stiffener are Z-shaped members, and still preferablythe Z-shaped members may be substantially identical. Each of theattachment holes may be positioned or located so as to extend throughone of the stiffeners.

In accordance with a second aspect of the invention, an adjustablemodular form system is provided for constructing a rectilinear columnform having a desired one of a plurality of available cross-sectionaldimensions. The system comprises a plurality of form panels, with eachof the form panels having first and second side edges, top and bottomedges, and a generally planar interconnecting skin. The first side edgeof each panel includes a plurality of attachment holes arranged in aplurality of vertically oriented gage lines, and the skin of each panelincludes a plurality of attachment holes arranged in a plurality ofvertically oriented gage lines. Accordingly, upon attaching the firstside edge of each of the panels along a selected one of the side edgegage lines to the skin of its adjacent panel along a selected one of theskin gage lines the panels are arranged to create the generallyrectilinear column form having the desired cross-sectional dimensions.

In accordance with another aspect of the invention, a concrete columnform comprises a plurality of form panels, with each of the form panelshaving first and second side edges, top and bottom edges, and agenerally planar interconnecting skin. Adjustable joining means areprovided for adjustably joining the panels to each other to produce agenerally rectilinear column form having a desired one of a plurality ofrectilinear cross-sections. The adjustable joining means is defined inpart by a portion of the first side edge of each of the panels and acooperating portion of the skin of an adjacent panel.

In accordance with yet another aspect of the invention, an adjustableforming system is provided for constructing a concrete column formhaving a desired one of a plurality of available cross-sectionaldimensions. The system comprises a plurality of form panels, with eachof the form panels having first and second side edges, top and bottomedges, and a generally planar interconnecting skin. The first side edgeof each of the form panels is adapted to define a plurality ofattachment lines, and the skin of each of the panels also is adapted todefine a plurality of attachment lines. Accordingly, the column formhaving the desired cross-sectional dimensions may be assembled uponsecuring a selected one of the first side edge attachment lines on eachof the panels to a selected one of the skin attachment lines on anadjacent panel.

In accordance with a still further aspect of the invention, a method ofconstructing a concrete column form having a desired one of a pluralityof available cross-sectional dimensions comprises the steps of choosingthe desired cross-sectional dimension to be constructed, and providing aplurality of form panels, with each of the form panels having first andsecond side edges, top and bottom edges, and a generally planarinterconnecting skin. Further, the first side edge of each of the panelsis provided with a plurality of attachment holes arranged in a pluralityof vertically oriented gage lines, while the skin of each of the panelsis provided with a plurality of attachment holes arranged in a pluralityof vertically oriented gage lines. A selected one of the gage lines onthe first side edge of each panel is secured to a selected one of thegage lines on the skin of an adjacent panel, thereby creating theconcrete column form having the desired cross-sectional dimension.

Preferably, the step of providing the plurality of form panels includesthe steps of providing a first set of form panels and providing a secondset of form panels, with the first set of form panels having a firstspacing between the first side edge gage lines and a second spacingbetween the skin gage lines, and with the second set of form panelshaving a third spacing between the first side edge gage lines and afourth spacing between the skin gage lines. The method may furtherinclude the steps of selecting a pair of form panels form the first setof form panels, selecting a set of form panels of from the second set ofform panels, and placing a form panel from each set between a pair ofform panels from the other set.

In accordance with an additional aspect of the invention, a method ofconstructing a concrete column form having a desired one of a pluralityof available cross-sectional dimensions comprises the steps of choosingthe desired cross-sectional dimension to be constructed, and providing aplurality of form panels, with each of the form panels having first andsecond side edges, top and bottom edges, and a generally planarinterconnecting skin. A plurality of attachment portions is provided onthe first side edge of each of the panels, and a plurality of attachmentportions is provided on the skin of each of the panels. A selected oneof the first side edge attachment portions of each of the panels isadjustably secured to a selected one of the attachment portions on theskin of an adjacent panel, thereby creating the concrete column formhaving the desired cross-sectional dimension.

Other features and advantages are inherent in the apparatus claimed anddisclosed or will become apparent to those skilled in the art from thefollowing detailed description and its accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a plurality of form panels constructedin accordance with the teachings of the present invention assembledtogether to form a section of a modular column form for constructing aconcrete column;

FIG. 2 is a perspective view of a single one of the form panelsillustrated in FIG. 1;

FIG. 3 is an elevational view of a single one of the form panelsillustrated in FIG. 1 and showing the back or stiffened side of the formpanel (i.e., the side opposite the skin of the panel and which facesaway from the column to be formed);

FIG. 3A is an elevational view of the form panel of FIG. 3 taken formthe other side illustrating the skin of the panel which faces theconcrete to be poured;

FIG. 4 is a right side elevational view of the form panel of FIG. 3;

FIG. 5 is a left side elevational view of the form panel of FIG. 3;

FIG. 6 is a top plan view of the form panel of FIG. 3.

FIG. 7 is a cross-sectional view of the assembled column formillustrated in FIG. 1 and taken generally at the level of the line 7—7thereof showing the column form assembled in a generally squarearrangement;

FIG. 8 is a cross-sectional view of an assembled column form similar toFIG. 7 but showing the column form assembled in a generally rectangulararrangement;

FIG. 8A is a cross-sectional view similar to FIG. 8 but illustrating theform panels assembled in a generally rectangular arrangement in whichtwo civil panels are used and two commercial panels are used;

FIG. 9 is an enlarged fragmentary cross-sectional view illustrating anunused attachment hole intersecting one of the Z-shaped stiffeners andfurther illustrating one of the plugs adapted for placement in theunused hole of the form panel of FIG. 3;

FIGS. 10A through 10H are an enlarged fragmentary top plan viewsillustrating a variety of possible attachment points between the sideedge of one panel and the skin of its adjacent panel and furtherillustrating the full utilization of both of the gage lines on the sideedge of the panel as well as all of the gage lines on the skin of theadjacent panel;

FIG. 11 is an elevational view of a single form panel similar to thepanel illustrated in FIGS. 3-6 but illustrating different spacing on thegage lines for the attachment holes on the first side edge and on theskin;

FIG. 11A is an elevational view of the form panel of FIG. 11 taken formthe other side illustrating the skin of the panel which faces theconcrete to be poured;

FIG. 12 is a right side elevational view of the form panel of FIG. 11;

FIG. 13 is a left side elevational view of the form panel of FIG. 11;and

FIG. 14 is a top plan view of the form panel of FIG. 11.

DETAILED DESCRIPTION OF THE INVENTION

The embodiment described herein is not intended to be exhaustive or tolimit the scope of the invention to the precise form disclosed. Thefollowing embodiment has been chosen and described in order to bestexplain the principles of the invention and to enable others skilled inthe art to follow its teachings.

Referring now to FIG. 1 of the drawings, a plurality of modular formpanels constructed in accordance with the teachings of the presentinvention and which are generally referred to by the reference numeral10 are shown assembled in adjacent relationship to form a section of acolumn form 12 for forming a concrete column (not shown) by pouringuncured concrete into a cavity 13 enclosed on four sides by the panels.

Referring now to FIGS. 2, 3, 3A, 4, 5 and 6, a single form panel 10 isshown. Although four such form panels 10 may be assembled to form thecolumn form 12 illustrated in FIG. 1, it will be understood that in thefirst embodiment of the invention the four form panels 10 aresubstantially identical, and thus for the sake of brevity only a singleform panel 10 will be described hereinafter in detail. The form panel 10includes a pair of side edges 14, 16, interconnecting top and bottomedges 18, 20, and an interconnecting and generally planar skin 22.

The side edge 14 includes a first set of holes 24 including holes 24 a,24 b, 24 c and 24 d arranged along a first vertical gage line 26, andfurther includes a second set of holes 28 including holes 28 a, 28 b, 28c, and 28 d arranged along a second vertical gage line 30. It will beunderstood that, although four holes are shown in the gage line 26 (24a-24 d) and four holes are shown in the gage line 30 (30 a-30 d), moreor fewer holes may be used in each of the gage lines 26, 30. Further,additional gage lines (not shown) may be used. It will further beunderstood that not all of the holes in each of the gage lines 26, 30need actually be used when assembling the column form 12.

The planar skin 22 includes a first set of holes 32 a and 32 b, whichare arranged along a vertical gage line 34. The planar skin 22 alsoincludes a second set of holes 36 a and 36 b, which are arranged along asecond vertical gage line 38. The planar skin 22 further includes athird set of holes 40 a and 40 b, which are arranged along a thirdvertical gage line 42, and finally includes a fourth set of holes 44 aand 44 b, which are arranged along a fourth vertical gage line 46. Itwill be understood that, although two holes are shown in each of thegage lines 34, 38, 42, and 46, more or fewer holes may be used in eachof the gage lines, and it will further be understood that the planarskin 22 may have additional gage lines (not shown). It will also beunderstood that if additional holes are provided in each of the gagelines, that not all of the holes need be used when assembling the columnform 12.

Referring now to FIGS. 2, 3 and 6, the side edge 14 may include astiffener 48. The stiffener 48 includes is a generally L-shaped memberhaving a pair of legs 50, 52. At least a portion, if not all, of the leg50 will generally define a widened face 54 which will abut the skin 22of an adjacent and similar panel 10 in the manner to be described ingreater detail below. It will be noted that in the preferred embodimentthe sets of holes 24, 28 are defined in the leg 50 of the stiffener 48.The side edge 16 may also include a stiffener 53, in which a pluralityof holes 54 may be defined for purposes of handling, etc. Alternatively,the stiffener 53 may be constructed so as to have a widened face similarto the stiffener 48 such that two (2) rows of holes 54 may be providedfor purposes of permitting the attachment of other elements orcomponents used in the construction process as may be contemplated bythose skilled in the art.

It will be noted when viewing either of FIGS. 1, 2, 5 or 6 that the gagelines 26, 30 on the side edge 14 are spaced apart a distance A, whilethe gage lines 34, 38, 42 and 46 on the skin 22 are spaced apart adistance B. In accordance with a preferred embodiment, the distances Aand B are not equal. In further accordance with a preferred embodiment,the distance A is less than B, with the distance A measuring about two(2) inches and the distance,B measuring about four (4) inches. As willbe outlined in greater detail below with respect to a second preferredembodiment of the invention, other distances may also be used.

Referring now to FIGS. 1 through 6, the panel 10 may further include oneor more lateral or horizontal stiffeners 56. The stiffeners 56 may beformed of a Z-shaped section having a pair of legs 58, 60 and aninterconnecting web 62. It will be noted that the leg 58 of thestiffeners are disposed so as to abut the backside of the planar skin(the backside being the face of the skin facing away from the concreteto be poured). The form panels may also include a top stiffener 64disposed along the top edge 18 and a bottom stiffener 66 disposed alongthe bottom edge 20. As shown, each of the top and bottom stiffeners areformed of C-shaped members having legs of unequal length. Otherstiffeners may be used. It will be understood that the panel 10 may beassembled by welding or by any other suitable attachment means.

Referring now to FIGS. 1 and 9, it will be noted that when the panels 10shown therein are assembled to form the column form 12, that at leastthree of the four gage lines in the skin 22 will be unused. When thepanels 10 are assembled as shown in FIG. 1, then the second, third andfourth sets of holes (i.e., holes 36 a, 36 b, 40 a, 40 b, 44 a, and 44b) along the gage lines 38, 42 and 46, respectively, will be exposed tothe concrete to be poured into the cavity 13. If left unplugged, atleast a portion of the uncured concrete and/or water would seep throughthe respective holes. Preferably, some means is provided for pluggingthe respective holes. In the preferred embodiment, and referringspecifically to FIG. 9 which illustrates the holes 32 a, 36 a, 40 a and44 a, each of the respective holes will include a first portion 68 whichextends through the skin 22 and a second portion 70 which extendsthrough the leg 58 of the stiffener 56. It will be noted that the firstportion 68 is countersunk (i.e., the first portion 68 has a diameterlarger than the diameter of the second portion 70). Consequently, aledge or annular seat 72 is formed at the interface between the firstportion 68 and the second portion 70.

Also shown in FIG. 9 is a plug 74 having a shank 76 sized to fit intothe second portion 70. The plug 74 also includes a head 78 having aplanar end surface 80. The head 78 is sized to fit into the firstportion 68, such that the head is seated on the annular seat 72.Accordingly, the end surface 80 cooperates with the surface of the skin22 to form a generally continuous and uninterrupted planar surface 82facing into the cavity 13. It will be understood that the planar surface82 will improve the surface characteristics of the concrete columnformed in the cavity 13 due to the fact that no portion of the plug 74will extend past the skin 22.

In operation, four of the panels 10 (hereinafter labeled panels 10 a, 10b, 10 c and 10 d for clarity) are placed as shown in FIGS. 1 and 7. Itwill again be understood that each of the panels 10 shown in FIGS. 1 and7 are substantially identical. When so assembled, the side edge 14 a ofthe first panel 10 a will be disposed adjacent the skin 22 b of theadjacent panel 10 b, and so on (i.e., the side edge 14 b of panel 10 bwill be disposed adjacent the skin 22 c of the adjacent panel 10 c, theside edge 14 c of the panel 10 c will be disposed adjacent the skin 22 dof the adjacent panel 10 d, and the side edge 14 d of the panel 10 dwill be disposed adjacent the skin 22 a of the adjacent panel 10 a).Using a plurality of bolts 84 (which may be any suitable fastener of thetype commonly employed in the assembly of forms), the panels 10 a-10 dmay be secured to each other in a variety of configurations so as todefine a cavity 13 having any one of a desired number of availablecross-sectional dimensions. Note that, in a preferred embodiment, thepanel skin may have a thickness of about {fraction (3/16)} of an inch,and the stiffeners may have a thickness of about {fraction (3/16)} toabout ¼ of an inch.

When configured as shown in FIG. 7, the gage line 30 a on the side edge14 a of the panel 10 a is secured to the skin 22 b of the panel 10 balong the gage line 34 b. Similarly, the gage line 30 b on the side edge14 b of the panel 10 b is secured to the skin 22 c of the panel 10 calong the gage line 34 c. Similarly, the gage line 30 c on the side edge14 c of the panel 10 c is secured to the skin 22 d of the panel 10 dalong the gage line 34 d. Finally, the gage line 30 d of the panel 10 dis secured to the skin 22 a of the panel 10 a along the gage line 34 a.

Referring now to FIGS. 10a-10 h, it will be understood that thecross-sectional dimensions of the cavity 13 can be varied widely simplyby selecting a desired cross-section for the cavity 13, and thenchoosing which gage lines 26, 30 shall be used on the side edge 14 ofthe panels 10, and which gage lines 34, 38, 42 and 46 shall be used onthe skin 22 of the next adjacent panel. As would be evident to thoseskilled in the art, a variety of square cross-sectional configurationsmay be achieved, with a representative example of a squarecross-sectional configuration being shown in FIG. 7. As would further beevident to those of skill in the art, a variety of rectangularcross-sectional configurations may be achieved as well, with arepresentative rectangular cross-sectional configuration being shown inFIG. 8.

It will be understood that a plurality of like panels 10 assembled intoa column form 12 may be placed on top of the column form 12 shown inFIG. 1, such that a column of various vertical dimensions may be formed.

Referring now to FIGS. 11-14, a form panel assembled in accordance withan alternate embodiment of the invention is shown and is referred to bythe reference numeral 110. The panel 110 is in many respects similar tothe panel 10 described above, and therefore all like elements will havethe same reference numeral, albeit increased by an increment of 100.Four (4) of the panels 110 may be used in conjunction with each other,or alternatively the panels 110 may be used as shown in FIG. 8a, with apair of the panels 110 being disposed between a pair of the panels 10 inalternating fashion. The form panel 110 includes a pair of side edges114, 116, interconnecting top and bottom edges 118, 120, and aninterconnecting and generally planar skin 122. The side edge 114includes first and second sets of holes 124, 128 arranged along a pairof vertical gage lines 126, 130. The planar skin 122 includes aplurality of holes arranged along four vertical gage lines 134, 138,142, and 146. Each of the panels 110 may be provided with a plurality ofZ-shaped stiffeners 156 as well as top, bottom and side stiffeners 164,166, and 153, respectively.

It will be noted that the gage lines 126, 130 on the side edge 114 arespaced apart a distance AA, while the gage lines 134, 138, 142 and 146on the skin 122 are spaced apart a distance BB. Again, the distances AAand BB need not be equal, and preferably are unequal. In the alternateembodiment, the distance AA is less than BB, with the distance AAmeasuring about three (3) inches and the distance BB measuring about six(6) inches. The panel 110 is preferably substantially similar to thepanel 10 in all other respects.

It will be noted that the panels 10 may generally be referred to as“Commercial” panels, while the panels 110 may generally be referred toas “Civil” panels. Each of the Commercial and civil panels may beassembled in a variety of nominal widths ranging from about, forexample, twenty four inches to about, for example, forty eight inches.The panels 10, 110 will typically have vertical dimensions of aboutforty eight inches, and as outlined above can be stacked to form columnsof varying vertical dimensions. The column form 12 assembled using thepanels will exhibit a very high acceptable pour pressure, exceeding 2000psf.

Referring now to Tables A through L, Table A illustrates eight differentgroupings of possible form assembly arrangements, with the groupingsshown therein being labeled as Groups I through VIII. For example, GroupI illustrates the cross-sectional dimensions achievable when bolting anominal twenty four inch (24″) commercial panel 10 to a like panel,using any one of the possible gage line combinations illustrated in thecorresponding FIGS. 10A through 10H. Group II illustrates the possiblecross-sectional dimensions achievable when bolting a nominal twenty fourinch (24″) civil panel 110 to a twenty four inch (24″) commercial panel10.

Group III illustrates the cross-sectional dimensions achievable whenbolting a nominal thirty six inch (36″) commercial panel 10 to a likepanel, using any one of the possible gage line combinations illustratedin the corresponding FIGS. 10A through 10H, while Group IV illustratesthe possible cross-sectional dimensions achievable when bolting anominal thirty six inch (36″) civil panel 110 to a thirty six inch (36″)commercial panel 10.

Group V illustrates the cross-sectional dimensions achievable whenbolting a nominal thirty six inch (36″) civil panel 110 to a like panel,using any one of the possible gage line combinations illustrated in thecorresponding FIG. 10A through 10H, while Group VI illustrates thepossible cross-sectional dimensions achievable when bolting a nominalthirty six inch (36″) commercial panel 10 to a thirty six inch (36″)civil panel 110.

Finally, Group VII illustrates the cross-sectional dimensions achievablewhen bolting a nominal forty eight inch (48″) civil panel 110 to a likepanel, using any one of the possible gage line combinations illustratedin the corresponding FIGS. 10A through 10H, while Group VIII illustratesthe possible cross-sectional dimensions achievable when bolting anominal forty eight inch (48″) commercial panel 10 to a forty eight inch(48″) civil panel 110. Each of the resulting cross-sections shown inTable A are generally square.

As would be known to those of skill in the art, the conventional sizeadjustment increments of civil form panels are generally referred to interms of three inch (3″) increments, while the conventional sizeadjustment increments of commercial form panels are generally referredto in terms of two inch (2″) increments. It is of course understood thatother size increments may be desired in some applications.

Tables B through K illustrate a number of possible form assemblyarrangements, including possible rectangular arrangements. The tabulararrangements are again achieved by selecting which of the gage lines areused on the four panels employed, and by varying the panels chosen(i.e., four civil panels, four commercial panels, or alternating twopanels from one type with two panels of another type). Again, the sizesare achieved by selecting which of the gage lines will be employed asshown in FIGS. 10A through 10H.

Finally, Table L illustrates the number of different form dimensionsavailable using the listed panel combinations, it being understood thatthere may be some duplication of form sizes.

TABLE A COLUMN FORM SYSTEM BOLT UP POSSIBILITIES SELECTED LINE ON SKIN22 34 34 38 38 42 42 46 46 SELECTED LINE ON EDGE 14 30 26 30 26 30 26 3026 FIRST SECOND FIRST SECOND FIRST SECOND FIRST SECOND GAUGE GAUGE GAUGEGAUGE GAUGE GAUGE GAUGE GAUGE I. 24″ COMMERCIAL 24 22 20 18 16 14 12 10II. CIVIL BOLTED TO 24″ 24 21 20 17 16 13 12  9 COMMERCIAL III. 36″COMMERCIAL 36 34 32 30 28 26 24 22 IV. CIVIL BOLTED TO 36″ 36 33 32 2928 25 24 21 COMMERCIAL V. 36″ CIVIL 36 33 30 27 24 21 18 15 VI.COMMERCIAL BOLTED TO 36″ 36 34 30 28 24 22 18 16 COMMERCIAL VII. 48″CIVIL 48 45 42 39 36 33 30 27 VIII. COMMERCIAL BOLTED TO 48″ 48 46 42 4036 34 30 28 CIVIL CORRESPONDING FIGURE 10A 10B 10C 10D 10E 10F 10G 10H

TABLE B 24″ COMM. + 24″ COMM. 24 X 24 24″ COMM. + 24″ COMM. 24 X 22 24″COMM. + 24″ COMM. 24 X 20 24″ COMM. + 24″ COMM. 24 X 18 24″ COMM. + 24″COMM. 24 X 16 24″ COMM. + 24″ COMM. 24 X 14 24″ COMM. + 24″ COMM. 24 X12 24″ COMM. + 24″ COMM. 24 X 10 24″ COMM. + 24″ COMM. 22 X 22 24″COMM. + 24″ COMM. 22 X 20 24″ COMM. + 24″ COMM. 22 X 18 24″ COMM. + 24″COMM. 22 X 16 24″ COMM. + 24″ COMM. 22 X 14 24″ COMM. + 24″ COMM. 22 X12 24″ COMM. + 24″ COMM. 22 X 10 24″ COMM. + 24″ COMM. 20 X 20 24″COMM. + 24″ COMM. 20 X 18 24″ COMM. + 24″ COMM. 20 X 16 24″ COMM. + 24″COMM. 20 X 14 24″ COMM. + 24″ COMM. 20 X 12 24″ COMM. + 24″ COMM. 20 X10 24″ COMM. + 24″ COMM. 18 X 18 24″ COMM. + 24″ COMM. 18 X 16 24″COMM. + 24″ COMM. 18 X 14 24″ COMM. + 24″ COMM. 18 X 12 24″ COMM. + 24″COMM. 18 X 10 24″ COMM. + 24″ COMM. 16 X 16 24″ COMM. + 24″ COMM. 16 X14 24″ COMM. + 24″ COMM. 16 X 12 24″ COMM. + 24″ COMM. 16 X 10 24″COMM. + 24″ COMM. 14 X 14 24″ COMM. + 24″ COMM. 14 X 12 24″ COMM. + 24″COMM. 14 X 10 24″ COMM. + 24″ COMM. 12 X 12 24″ COMM. + 24″ COMM. 12 X10 24″ COMM. + 24″ COMM. 10 X 10

TABLE C 36″ CIVIL + 36″ CIVIL 36 X 36 36″ CIVIL + 36″ CIVIL 36 X 33 36″CIVIL + 36″ CIVIL 36 X 30 36″ CIVIL + 36″ CIVIL 36 X 27 36″ CIVIL + 36″CIVIL 36 X 24 36″ CIVIL + 36″ CIVIL 36 X 21 36″ CIVIL + 36″ CIVIL 36 X18 36″ CIVIL + 36″ CIVIL 36 X 15 36″ CIVIL + 36″ CIVIL 33 X 33 36″CIVIL + 36″ CIVIL 33 X 30 36″ CIVIL + 36″ CIVIL 33 X 27 36″ CIVIL + 36″CIVIL 33 X 24 36″ CIVIL + 36″ CIVIL 33 X 21 36″ CIVIL + 36″ CIVIL 33 X18 36″ CIVIL + 36″ CIVIL 33 X 15 36″ CIVIL + 36″ CIVIL 30 X 30 36″CIVIL + 36″ CIVIL 30 X 27 36″ CIVIL + 36″ CIVIL 30 X 24 36″ CIVIL + 36″CIVIL 30 X 21 36″ CIVIL + 36″ CIVIL 30 X 18 36″ CIVIL + 36″ CIVIL 30 X15 36″ CIVIL + 36″ CIVIL 27 X 27 36″ CIVIL + 36″ CIVIL 27 X 24 36″CIVIL + 36″ CIVIL 27 X 21 36″ CIVIL + 36″ CIVIL 27 X 18 36″ CIVIL + 36″CIVIL 27 X 15 36″ CIVIL + 36″ CIVIL 24 X 24 36″ CIVIL + 36″ CIVIL 24 X21 36″ CIVIL + 36″ CIVIL 24 X 18 36″ CIVIL + 36″ CIVIL 24 X 15 36″CIVIL + 36″ CIVIL 21 X 21 36″ CIVIL + 36″ CIVIL 21 X 18 36″ CIVIL + 36″CIVIL 21 X 15 36″ CIVIL + 36″ CIVIL 18 X 18 36″ CIVIL + 36″ CIVIL 18 X15 36″ CIVIL + 36″ CIVIL 15 X 15

TABLE D 36″ COMM. + 36″ COMM. 36 X 36 36″ COMM. + 36″ COMM. 36 X 34 36″COMM. + 36″ COMM. 36 X 32 36″ COMM. + 36″ COMM. 36 X 30 36″ COMM. + 36″COMM. 36 X 28 36″ COMM. + 36″ COMM. 36 X 26 36″ COMM. + 36″ COMM. 36 X24 36″ COMM. + 36″ COMM. 36 X 22 36″ COMM. + 36″ COMM. 34 X 34 36″COMM. + 36″ COMM. 34 X 32 36″ COMM. + 36″ COMM. 34 X 30 36″ COMM. + 36″COMM. 34 X 28 36″ COMM. + 36″ COMM. 34 X 26 36″ COMM. + 36″ COMM. 34 X24 36″ COMM. + 36″ COMM. 34 X 22 36″ COMM. + 36″ COMM. 32 X 32 36″COMM. + 36″ COMM. 32 X 30 36″ COMM. + 36″ COMM. 32 X 28 36″ COMM. + 36″COMM. 32 X 26 36″ COMM. + 36″ COMM. 32 X 24 36″ COMM. + 36″ COMM. 32 X22 36″ COMM. + 36″ COMM. 30 X 30 36″ COMM. + 36″ COMM. 30 X 28 36″COMM. + 36″ COMM. 30 X 26 36″ COMM. + 36″ COMM. 30 X 24 36″ COMM. + 36″COMM. 30 X 22 36″ COMM. + 36″ COMM. 28 X 28 36″ COMM. + 36″ COMM. 28 X26 36″ COMM. + 36″ COMM. 28 X 24 36″ COMM. + 36″ COMM. 28 X 22 36″COMM. + 36″ COMM. 26 X 26 36″ COMM. + 36″ COMM. 26 X 24 36″ COMM. + 36″COMM. 26 X 22 36″ COMM. + 36″ COMM. 24 X 24 36″ COMM. + 36″ COMM. 24 X22 36″ COMM. + 36″ COMM. 22 X 22

TABLE E 48″ CIVIL + 48″ CIVIL 48 X 48 48″ CIVIL + 48″ CIVIL 48 X 45 48″CIVIL + 48″ CIVIL 48 X 42 48″ CIVIL + 48″ CIVIL 48 X 39 48″ CIVIL + 48″CIVIL 48 X 36 48″ CIVIL + 48″ CIVIL 48 X 33 48″ CIVIL + 48″ CIVIL 48 X30 48″ CIVIL + 48″ CIVIL 48 X 27 48″ CIVIL + 48″ CIVIL 45 X 45 48″CIVIL + 48″ CIVIL 45 X 42 48″ CIVIL + 48″ CIVIL 45 X 39 48″ CIVIL + 48″CIVIL 45 X 36 48″ CIVIL + 48″ CIVIL 45 X 33 48″ CIVIL + 48″ CIVIL 45 X30 48″ CIVIL + 48″ CIVIL 45 X 27 48″ CIVIL + 48″ CIVIL 42 X 42 48″CIVIL + 48″ CIVIL 42 X 39 48″ CIVIL + 48″ CIVIL 42 X 36 48″ CIVIL + 48″CIVIL 42 X 33 48″ CIVIL + 48″ CIVIL 42 X 30 48″ CIVIL + 48″ CIVIL 42 X27 48″ CIVIL + 48″ CIVIL 39 X 39 48″ CIVIL + 48″ CIVIL 39 X 36 48″CIVIL + 48″ CIVIL 39 X 33 48″ CIVIL + 48″ CIVIL 39 X 30 48″ CIVIL + 48″CIVIL 39 X 27 48″ CIVIL + 48″ CIVIL 36 X 36 48″ CIVIL + 48″ CIVIL 36 X33 48″ CIVIL + 48″ CIVIL 36 X 30 48″ CIVIL + 48″ CIVIL 36 X 27 48″CIVIL + 48″ CIVIL 33 X 33 48″ CIVIL + 48″ CIVIL 33 X 30 48″ CIVIL + 48″CIVIL 33 X 27 48″ CIVIL + 48″ CIVIL 30 X 30 48″ CIVIL + 48″ CIVIL 30 X27 48″ CIVIL + 48″ CIVIL 27 X 27

TABLE F 36″ COMM. + 24 ″ COMM. 36 X 24 36″ COMM. + 24 ″ COMM. 36 X 2236″ COMM. + 24 ″ COMM. 36 X 20 36″ COMM. + 24 ″ COMM. 36 X 18 36″COMM. + 24 ″ COMM. 36 X 16 36″ COMM. + 24 ″ COMM. 36 X 14 36″ COMM. + 24″ COMM. 36 X 12 36″ COMM. + 24 ″ COMM. 36 X 10 36″ COMM. + 24 ″ COMM. 34X 24 36″ COMM. + 24 ″ COMM. 34 X 22 36″ COMM. + 24 ″ COMM. 34 X 20 36″COMM. + 24 ″ COMM. 34 X 18 36″ COMM. + 24 ″ COMM. 34 X 16 36″ COMM. + 24″ COMM. 34 X 14 36″ COMM. + 24 ″ COMM. 34 X 12 36″ COMM. + 24 ″ COMM. 34X 10 36″ COMM. + 24 ″ COMM. 32 X 24 36″ COMM. + 24 ″ COMM. 32 X 22 36″COMM. + 24 ″ COMM. 32 X 20 36″ COMM. + 24 ″ COMM. 32 X 18 36″ COMM. + 24″ COMM. 32 X 16 36″ COMM. + 24 ″ COMM. 32 X 14 36″ COMM. + 24 ″ COMM. 32X 12 36″ COMM. + 24 ″ COMM. 32 X 10 36″ COMM. + 24 ″ COMM. 30 X 24 36″COMM. + 24 ″ COMM. 30 X 22 36″ COMM. + 24 ″ COMM. 30 X 20 36″ COMM. + 24″ COMM. 30 X 18 36″ COMM. + 24 ″ COMM. 30 X 16 36″ COMM. + 24 ″ COMM. 30X 14 36″ COMM. + 24 ″ COMM. 30 X 12 36″ COMM. + 24 ″ COMM. 30 X 10 36″COMM. + 24 ″ COMM. 28 X 24 36″ COMM. + 24 ″ COMM. 28 X 22 36″ COMM. + 24″ COMM. 28 X 20 36″ COMM. + 24 ″ COMM. 28 X 18 36″ COMM. + 24 ″ COMM. 28X 16 36″ COMM. + 24 ″ COMM. 28 X 14 36″ COMM. + 24 ″ COMM. 28 X 12 36″COMM. + 24 ″ COMM. 28 X 10 36″ COMM. + 24 ″ COMM. 26 X 24 36″ COMM. + 24″ COMM. 26 X 22 36″ COMM. + 24 ″ COMM. 26 X 20 36″ COMM. + 24 ″ COMM. 26X 18 36″ COMM. + 24 ″ COMM. 26 X 16 36″ COMM. + 24 ″ COMM. 26 X 14 36″COMM. + 24 ″ COMM. 26 X 12 36″ COMM. + 24 ″ COMM. 26 X 10 36″ COMM. + 24″ COMM. 24 X 24 36″ COMM. + 24 ″ COMM. 24 X 22 36″ COMM. + 24 ″ COMM. 24X 20 36″ COMM. + 24 ″ COMM. 24 X 18 36″ COMM. + 24 ″ COMM. 24 X 16 36″COMM. + 24 ″ COMM. 24 X 14 36″ COMM. + 24 ″ COMM. 24 X 12 36″ COMM. + 24″ COMM. 24 X 10 36″ COMM. + 24 ″ COMM. 22 X 22 36″ COMM. + 24 ″ COMM. 22X 20 36″ COMM. + 24 ″ COMM. 22 X 18 36″ COMM. + 24 ″ COMM. 22 X 16 36″COMM. + 24 ″ COMM. 22 X 14 36″ COMM. + 24 ″ COMM. 22 X 12 36″ COMM. + 24″ COMM. 22 X 10

TABLE G 48″ CIVIL + 36″ CIVIL 48 X 36 48″ CIVIL + 36″ CIVIL 48 X 33 48″CIVIL + 36″ CIVIL 48 X 30 48″ CIVIL + 36″ CIVIL 48 X 27 48″ CIVIL + 36″CIVIL 48 X 24 48″ CIVIL + 36″ CIVIL 48 X 21 48″ CIVIL + 36″ CIVIL 48 X18 48″ CIVIL + 36″ CIVIL 48 X 15 48″ CIVIL + 36″ CIVIL 45 X 36 48″CIVIL + 36″ CIVIL 45 X 33 48″ CIVIL + 36″ CIVIL 45 X 30 48″ CIVIL + 36″CIVIL 45 X 27 48″ CIVIL + 36″ CIVIL 45 X 24 48″ CIVIL + 36″ CIVIL 45 X21 48″ CIVIL + 36″ CIVIL 45 X 18 48″ CIVIL + 36″ CIVIL 45 X 15 48″CIVIL + 36″ CIVIL 42 X 36 48″ CIVIL + 36″ CIVIL 42 X 33 48″ CIVIL + 36″CIVIL 42 X 30 48″ CIVIL + 36″ CIVIL 42 X 27 48″ CIVIL + 36″ CIVIL 42 X24 48″ CIVIL + 36″ CIVIL 42 X 21 48″ CIVIL + 36″ CIVIL 42 X 18 48″CIVIL + 36″ CIVIL 42 X 15 48″ CIVIL + 36″ CIVIL 39 X 36 48″ CIVIL + 36″CIVIL 39 X 33 48″ CIVIL + 36″ CIVIL 39 X 30 48″ CIVIL + 36″ CIVIL 39 X27 48″ CIVIL + 36″ CIVIL 39 X 24 48″ CIVIL + 36″ CIVIL 39 X 21 48″CIVIL + 36″ CIVIL 39 X 18 48″ CIVIL + 36″ CIVIL 39 X 15 48″ CIVIL + 36″CIVIL 36 X 36 48″ CIVIL + 36″ CIVIL 36 X 33 48″ CIVIL + 36″ CIVIL 36 X30 48″ CIVIL + 36″ CIVIL 36 X 27 48″ CIVIL + 36″ CIVIL 36 X 24 48″CIVIL + 36″ CIVIL 36 X 21 48″ CIVIL + 36″ CIVIL 36 X 18 48″ CIVIL + 36″CIVIL 36 X 15 48″ CIVIL + 36″ CIVIL 33 X 33 48″ CIVIL + 36″ CIVIL 33 X30 48″ CIVIL + 36″ CIVIL 33 X 27 48″ CIVIL + 36″ CIVIL 33 X 24 48″CIVIL + 36″ CIVIL 33 X 21 48″ CIVIL + 36″ CIVIL 33 X 18 48″ CIVIL + 36″CIVIL 33 X 15 48″ CIVIL + 36″ CIVIL 30 X 30 48″ CIVIL + 36″ CIVIL 30 X27 48″ CIVIL + 36″ CIVIL 30 X 24 48″ CIVIL + 36″ CIVIL 30 X 21 48″CIVIL + 36″ CIVIL 30 X 18 48″ CIVIL + 36″ CIVIL 30 X 15 48″ CIVIL + 36″CIVIL 27 X 27 48″ CIVIL + 36″ CIVIL 27 X 24 48″ CIVIL + 36″ CIVIL 27 X21 48″ CIVIL + 36″ CIVIL 27 X 18 48″ CIVIL + 36″ CIVIL 27 X 15

TABLE H 36″ CIVIL + 24 ″ COMM. 36 X 24 36″ CIVIL + 24 ″ COMM. 36 X 2136″ CIVIL + 24 ″ COMM. 36 X 20 36″ CIVIL + 24 ″ COMM. 36 X 17 36″CIVIL + 24 ″ COMM. 36 X 16 36″ CIVIL + 24 ″ COMM. 36 X 13 36″ CIVIL + 24″ COMM. 36 X 12 36″ CIVIL + 24 ″ COMM. 36 X  9 36″ CIVIL + 24 ″ COMM. 34X 24 36″ CIVIL + 24 ″ COMM. 34 X 21 36″ CIVIL + 24 ″ COMM. 34 X 20 36″CIVIL + 24 ″ COMM. 34 X 17 36″ CIVIL + 24 ″ COMM. 34 X 16 36″ CIVIL + 24″ COMM. 34 X 13 36″ CIVIL + 24 ″ COMM. 34 X 12 36″ CIVIL + 24 ″ COMM. 34X  9 36″ CIVIL + 24 ″ COMM. 30 X 24 36″ CIVIL + 24 ″ COMM. 30 X 21 36″CIVIL + 24 ″ COMM. 30 X 20 36″ CIVIL + 24 ″ COMM. 30 X 17 36″ CIVIL + 24″ COMM. 30 X 16 36″ CIVIL + 24 ″ COMM. 30 X 13 36″ CIVIL + 24 ″ COMM. 30X 12 36″ CIVIL + 24 ″ COMM. 30 X  9 36″ CIVIL + 24 ″ COMM. 28 X 24 36″CIVIL + 24 ″ COMM. 28 X 21 36″ CIVIL + 24 ″ COMM. 28 X 20 36″ CIVIL + 24″ COMM. 28 X 17 36″ CIVIL + 24 ″ COMM. 28 X 16 36″ CIVIL + 24 ″ COMM. 28X 13 36″ CIVIL + 24 ″ COMM. 28 X 12 36″ CIVIL + 24 ″ COMM. 28 X  9 36″CIVIL + 24 ″ COMM. 24 X 24 36″ CIVIL + 24 ″ COMM. 24 X 21 36″ CIVIL + 24″ COMM. 24 X 20 36″ CIVIL + 24 ″ COMM. 24 X 17 36″ CIVIL + 24 ″ COMM. 24X 16 36″ CIVIL + 24 ″ COMM. 24 X 13 36″ CIVIL + 24 ″ COMM. 24 X 12 36″CIVIL + 24 ″ COMM. 24 X  9 36″ CIVIL + 24 ″ COMM. 22 X 24 36″ CIVIL + 24″ COMM. 22 X 21 36″ CIVIL + 24 ″ COMM. 22 X 20 36″ CIVIL + 24 ″ COMM. 22X 17 36″ CIVIL + 24 ″ COMM. 22 X 16 36″ CIVIL + 24 ″ COMM. 22 X 13 36″CIVIL + 24 ″ COMM. 22 X 12 36″ CIVIL + 24 ″ COMM. 22 X  9 36″ CIVIL + 24″ COMM. 18 X 24 36″ CIVIL + 24 ″ COMM. 18 X 21 36″ CIVIL + 24 ″ COMM. 18X 20 36″ CIVIL + 24 ″ COMM. 18 X 17 36″ CIVIL + 24 ″ COMM. 18 X 16 36″CIVIL + 24 ″ COMM. 18 X 13 36″ CIVIL + 24 ″ COMM. 18 X 12 36″ CIVIL + 24″ COMM. 18 X  9 36″ CIVIL + 24 ″ COMM. 16 X 24 36″ CIVIL + 24 ″ COMM. 16X 21 36″ CIVIL + 24 ″ COMM. 16 X 20 36″ CIVIL + 24 ″ COMM. 16 X 17 36″CIVIL + 24 ″ COMM. 16 X 16 36″ CIVIL + 24 ″ COMM. 16 X 13 36″ CIVIL + 24″ COMM. 16 X 12 36″ CIVIL + 24 ″ COMM. 16 X  9

TABLE I 48″ CIVIL + 24″ COMM. 48 X 24 48″ CIVIL + 24″ COMM. 48 X 21 48″CIVIL + 24″ COMM. 48 X 20 48″ CIVIL + 24″ COMM. 48 X 17 48″ CIVIL + 24″COMM. 48 X 16 48″ CIVIL + 24″ COMM. 48 X 13 48″ CIVIL + 24″ COMM. 48 X12 48″ CIVIL + 24″ COMM. 48 X  9 48″ CIVIL + 24″ COMM. 46 X 24 48″CIVIL + 24″ COMM. 46 X 21 48″ CIVIL + 24″ COMM. 46 X 20 48″ CIVIL + 24″COMM. 46 X 17 48″ CIVIL + 24″ COMM. 46 X 16 48″ CIVIL + 24″ COMM. 46 X13 48″ CIVIL + 24″ COMM. 46 X 12 48″ CIVIL + 24″ COMM. 46 X  9 48″CIVIL + 24″ COMM. 42 X 24 48″ CIVIL + 24″ COMM. 42 X 21 48″ CIVIL + 24″COMM. 42 X 20 48″ CIVIL + 24″ COMM. 42 X 17 48″ CIVIL + 24″ COMM. 42 X16 48″ CIVIL + 24″ COMM. 42 X 13 48″ CIVIL + 24″ COMM. 42 X 12 48″CIVIL + 24″ COMM. 42 X  9 48″ CIVIL + 24″ COMM. 40 X 24 48″ CIVIL + 24″COMM. 40 X 21 48″ CIVIL + 24″ COMM. 40 X 20 48″ CIVIL + 24″ COMM. 40 X17 48″ CIVIL + 24″ COMM. 40 X 16 48″ CIVIL + 24″ COMM. 40 X 13 48″CIVIL + 24″ COMM. 40 X 12 48″ CIVIL + 24″ COMM. 40 X  9 48″ CIVIL + 24″COMM. 36 X 24 48″ CIVIL + 24″ COMM. 36 X 21 48″ CIVIL + 24″ COMM. 36 X20 48″ CIVIL + 24″ COMM. 36 X 17 48″ CIVIL + 24″ COMM. 36 X 16 48″CIVIL + 24″ COMM. 36 X 13 48″ CIVIL + 24″ COMM. 36 X 12 48″ CIVIL + 24″COMM. 36 X  9 48″ CIVIL + 24″ COMM. 34 X 24 48″ CIVIL + 24″ COMM. 34 X21 48″ CIVIL + 24″ COMM. 34 X 20 48″ CIVIL + 24″ COMM. 34 X 17 48″CIVIL + 24″ COMM. 34 X 16 48″ CIVIL + 24″ COMM. 34 X 13 48″ CIVIL + 24″COMM. 34 X 12 48″ CIVIL + 24″ COMM. 34 X  9 48″ CIVIL + 24″ COMM. 30 X24 48″ CIVIL + 24″ COMM. 30 X 21 48″ CIVIL + 24″ COMM. 30 X 20 48″CIVIL + 24″ COMM. 30 X 17 48″ CIVIL + 24″ COMM. 30 X 16 48″ CIVIL + 24″COMM. 30 X 13 48″ CIVIL + 24″ COMM. 30 X 12 48″ CIVIL + 24″ COMM. 30 X 9 48″ CIVIL + 24″ COMM. 28 X 24 48″ CIVIL + 24″ COMM. 28 X 21 48″CIVIL + 24″ COMM. 28 X 20 48″ CIVIL + 24″ COMM. 28 X 17 48″ CIVIL + 24″COMM. 28 X 16 48″ CIVIL + 24″ COMM. 28 X 13 48″ CIVIL + 24″ COMM. 28 X12 48″ CIVIL + 24″ COMM. 28 X  9

TABLE J 36″ CIVIL + 36″ COMM. 36 X 36 36″ CIVIL + 36″ COMM. 36 X 33 36″CIVIL + 36″ COMM. 36 X 32 36″ CIVIL + 36″ COMM. 36 X 29 36″ CIVIL + 36″COMM. 36 X 28 36″ CIVIL + 36″ COMM. 36 X 25 36″ CIVIL + 36″ COMM. 36 X24 36″ CIVIL + 36″ COMM. 36 X 21 36″ CIVIL + 36″ COMM. 34 X 36 36″CIVIL + 36″ COMM. 34 X 33 36″ CIVIL + 36″ COMM. 34 X 32 36″ CIVIL + 36″COMM. 34 X 29 36″ CIVIL + 36″ COMM. 34 X 28 36″ CIVIL + 36″ COMM. 34 X25 36″ CIVIL + 36″ COMM. 34 X 24 36″ CIVIL + 36″ COMM. 34 X 21 36″CIVIL + 36″ COMM. 30 X 36 36″ CIVIL + 36″ COMM. 30 X 33 36″ CIVIL + 36″COMM. 30 X 32 36″ CIVIL + 36″ COMM. 30 X 29 36″ CIVIL + 36″ COMM. 30 X28 36″ CIVIL + 36″ COMM. 30 X 25 36″ CIVIL + 36″ COMM. 30 X 24 36″CIVIL + 36″ COMM. 30 X 21 36″ CIVIL + 36″ COMM. 28 X 36 36″ CIVIL + 36″COMM. 28 X 33 36″ CIVIL + 36″ COMM. 28 X 32 36″ CIVIL + 36″ COMM. 28 X29 36″ CIVIL + 36″ COMM. 28 X 28 36″ CIVIL + 36″ COMM. 28 X 25 36″CIVIL + 36″ COMM. 28 X 24 36″ CIVIL + 36″ COMM. 28 X 21 36″ CIVIL + 36″COMM. 24 X 36 36″ CIVIL + 36″ COMM. 24 X 33 36″ CIVIL + 36″ COMM. 24 X32 36″ CIVIL + 36″ COMM. 24 X 29 36″ CIVIL + 36″ COMM. 24 X 28 36″CIVIL + 36″ COMM. 24 X 25 36″ CIVIL + 36″ COMM. 24 X 24 36″ CIVIL + 36″COMM. 24 X 21 36″ CIVIL + 36″ COMM. 22 X 36 36″ CIVIL + 36″ COMM. 22 X33 36″ CIVIL + 36″ COMM. 22 X 32 36″ CIVIL + 36″ COMM. 22 X 29 36″CIVIL + 36″ COMM. 22 X 28 36″ CIVIL + 36″ COMM. 22 X 25 36″ CIVIL + 36″COMM. 22 X 24 36″ CIVIL + 36″ COMM. 22 X 21 36″ CIVIL + 36″ COMM. 18 X36 36″ CIVIL + 36″ COMM. 18 X 33 36″ CIVIL + 36″ COMM. 18 X 32 36″CIVIL + 36″ COMM. 18 X 29 36″ CIVIL + 36″ COMM. 18 X 28 36″ CIVIL + 36″COMM. 18 X 25 36″ CIVIL + 36″ COMM. 18 X 24 36″ CIVIL + 36″ COMM. 18 X21 36″ CIVIL + 36″ COMM. 16 X 36 36″ CIVIL + 36″ COMM. 16 X 33 36″CIVIL + 36″ COMM. 16 X 32 36″ CIVIL + 36″ COMM. 16 X 29 36″ CIVIL + 36″COMM. 16 X 28 36″ CIVIL + 36″ COMM. 16 X 25 36″ CIVIL + 36″ COMM. 16 X24 36″ CIVIL + 36″ COMM. 16 X 21

TABLE K 48″ CIVIL + 36″ COMM. 48 X 36 48″ CIVIL + 36″ COMM. 48 X 33 48″CIVIL + 36″ COMM. 48 X 32 48″ CIVIL + 36″ COMM. 48 X 29 48″ CIVIL + 36″COMM. 48 X 28 48″ CIVIL + 36″ COMM. 48 X 25 48″ CIVIL + 36″ COMM. 48 X24 48″ CIVIL + 36″ COMM. 48 X 21 48″ CIVIL + 36″ COMM. 48 X 36 48″CIVIL + 36″ COMM. 46 X 33 48″ CIVIL + 36″ COMM. 46 X 32 48″ CIVIL + 36″COMM. 46 X 29 48″ CIVIL + 36″ COMM. 46 X 28 48″ CIVIL + 36″ COMM. 46 X25 48″ CIVIL + 36″ COMM. 46 X 24 48″ CIVIL + 36″ COMM. 46 X 21 48″CIVIL + 36″ COMM. 42 X 36 48″ CIVIL + 36″ COMM. 42 X 33 48″ CIVIL + 36″COMM. 42 X 32 48″ CIVIL + 36″ COMM. 42 X 29 48″ CIVIL + 36″ COMM. 42 X28 48″ CIVIL + 36″ COMM. 42 X 25 48″ CIVIL + 36″ COMM. 42 X 24 48″CIVIL + 36″ COMM. 42 X 21 48″ CIVIL + 36″ COMM. 40 X 36 48″ CIVIL + 36″COMM. 40 X 33 48″ CIVIL + 36″ COMM. 40 X 32 48″ CIVIL + 36″ COMM. 40 X29 48″ CIVIL + 36″ COMM. 40 X 28 48″ CIVIL + 36″ COMM. 40 X 25 48″CIVIL + 36″ COMM. 40 X 24 48″ CIVIL + 36″ COMM. 40 X 21 48″ CIVIL + 36″COMM. 36 X 36 48″ CIVIL + 36″ COMM. 36 X 33 48″ CIVIL + 36″ COMM. 36 X32 48″ CIVIL + 36″ COMM. 36 X 29 48″ CIVIL + 36″ COMM. 36 X 28 48″CIVIL + 36″ COMM. 36 X 25 48″ CIVIL + 36″ COMM. 36 X 24 48″ CIVIL + 36″COMM. 36 X 21 48″ CIVIL + 36″ COMM. 34 X 36 48″ CIVIL + 36″ COMM. 34 X33 48″ CIVIL + 36″ COMM. 34 X 32 48″ CIVIL + 36″ COMM. 34 X 29 48″CIVIL + 36″ COMM. 34 X 28 48″ CIVIL + 36″ COMM. 34 X 25 48″ CIVIL + 36″COMM. 34 X 24 48″ CIVIL + 36″ COMM. 34 X 21 48″ CIVIL + 36″ COMM. 30 X36 48″ CIVIL + 36″ COMM. 30 X 33 48″ CIVIL + 36″ COMM. 30 X 32 48″CIVIL + 36″ COMM. 30 X 29 48″ CIVIL + 36″ COMM. 30 X 28 48″ CIVIL + 36″COMM. 30 X 25 48″ CIVIL + 36″ COMM. 30 X 24 48″ CIVIL + 36″ COMM. 30 X21 48″ CIVIL + 36″ COMM. 28 X 36 48″ CIVIL + 36″ COMM. 28 X 33 48″CIVIL + 36″ COMM. 28 X 32 48″ CIVIL + 36″ COMM. 28 X 29 48″ CIVIL + 36″COMM. 28 X 28 48″ CIVIL + 36″ COMM. 28 X 25 48″ CIVIL + 36″ COMM. 28 X24 48″ CIVIL + 36″ COMM. 28 X 21

TABLE L CONFIG- SIZE CONFIG- SIZE URATION POSSIBILITIES URATIONPOSSIBILITIES 24″ COMM. + 36 36″ CIVIL + 36 24″ COMM. 36″ CIVIL 36″COMM. + 36 48″ CIVIL + 36 36″ COMM. 48″ CIVIL 36″ COMM. + 63 48″ CIVIL +58 24″ COMM. 36″ CIVIL 36″ CIVIL + 64 48″ CIVIL + 64 24″ COMM. 24″ COMM.36″ CIVIL + 64 48″ CIVIL + 64 36″ COMM. 36″ COMM.

Numerous modifications and alternative embodiments of the invention willbe apparent to those skilled in the art in view of the foregoingdescription. Accordingly, this description is to be construed asillustrative only and is for the purpose of teaching those skilled inthe art the best mode of carrying out the invention. The details of thestructure may be varied substantially without departing from the spiritof the invention, and the exclusive use of all modifications which comewithin the scope of the appended claims is reserved.

What is claimed:
 1. A system for constructing a concrete column form,the system comprising: a plurality of identical form panels, each of theform panels comprising: a first side edge and a second side edge; a topedge; a bottom edge; and a generally planar skin extending between thefirst and second side edges and the top and bottom edges; the first sideedge of each of the panels including a widened edge member extendingentirely rearwardly of the skin, a portion of the edge member forming anabutting surface adapted for abutting contact with the skin of anadjacent panel; first and second vertically oriented gage lines definedon the first side edge and spaced apart a first distance, each of thegage lines of the first side edge including a plurality of attachmentholes, each of the attachment holes in the first gage line alignedhorizontally with an attachment hole in the second gage line; and aplurality of vertically oriented gage lines defined on the skin andspaced apart a second distance, each of the gage lines of the skinincluding a plurality of attachment holes, each of the attachment holesin each of the gage lines aligned horizontally with an attachment holein each of the remaining gage lines; and wherein the attachment holes ofthe first and second gage lines of the first side edge of each of theform panels are located on the first side edge so as to be registrablewith and attachable to the attachment holes of any one of the pluralityof gage lines on the skin of an adjacent panel; whereby the column formis created upon attaching a selected one of the first and second gagelines on the first side edge of each of the form panels to a selectedone of the plurality of gage lines on the skin of an adjacent one of theform panels.
 2. The system of claim 1, wherein the widened edge membercomprising an L-shaped member having a first leg and a second leg, thefirst leg having a widened faced shaped to abut the skin of the adjacentone of the form panels, the first and second gage lines of the firstside edge defined in the widened face.
 3. The system of claim 1, whereinthe first side edge gage lines of each panel are spaced apart a firstdistance and further wherein the plurality of gage lines of the skin arespaced apart a second distance.
 4. The system of claim 3, wherein thefirst distance is less than the second distance.
 5. The system of claim3, wherein the first distance is between about 2 inches and about 3inches, and further wherein the second distance is between about 4inches and about 6 inches.
 6. The system of claim 1, further includingat least one plug, the plug being adapted for placement in an unused oneof the plurality of attachment holes in the skin of at least one of thepanels.
 7. The system of claim 6, wherein the unused one of theattachment holes on the skin includes a countersunk portion, and furtherwherein the plug includes a shank and a head, the head of the plugincluding an end surface, the plug being sized to fit in the countersunkportion so that the plug head cooperates with the skin to form agenerally uninterrupted planar surface.
 8. The system of claim 1,wherein at least one of the plurality of attachment holes on the skin isunused and includes a countersunk portion, and further including a plugadapted for placement in the unused hole, the plug including a headportion, the head portion cooperating with the countersunk portion todefine with the skin a generally continuous planar surface.
 9. Thesystem of claim 1, wherein each of the panels includes a top stiffeneradjacent the top edge and a bottom stiffener adjacent the bottom edge,the top and bottom stiffeners extending between the first and secondside edges.
 10. The system of claim 9, wherein each of the panelsincludes at least one intermediate stiffener.
 11. The system of claim10, wherein each of the top, bottom, and intermediate stiffener areZ-shaped members.
 12. The system of claim 1, including a plurality ofintermediate stiffeners extending between the first and second sideedges of each of the panels, and further wherein each of the attachmentholes on the skin of each of the panels extends through one of thestiffeners.
 13. The system of claim 12, wherein at least one of theattachment holes is unused, and further including a plug having a headand being adapted for placement in the unused hole, the plug engaging atleast a portion of the stiffener so that the plug head forms with theskin a generally uninterrupted planar surface.
 14. A system forconstructing a concrete column form, the system comprising: a pluralityof form panels, each of the form panels having a first side edge, asecond side edge, a top edge, a bottom edge, and a generally planarskin, the first side edge of each of the panels including a widened edgemember extending entirely rearwardly of the skin, a portion of the edgemember forming an abutting surface adapted for abutting contact with theskin of art adjacent panel, each of the form panels further including:first and second vertically oriented gage lines defined on the firstside edge, the first and second gage lines of the first side edge spacedapart a first distance, each of the gage lines of the first side edgeincluding a plurality of attachment holes, each of the attachment holesin the first gage line of the first side edge and a correspondingattachment hole in the second gage line of the first side edge spacedequidistantly from the top edge; and a plurality of vertically orientedgage lines defined on the skin and spaced apart a second distancegreater than the first distance, each of the gage lines of the skinincluding a plurality of attachment holes, each of the attachment holesin each of the gage lines of the skin aligned with a correspondingattachment hole in an adjacent gage line of the skin, each attachmenthole of the skin and its corresponding attachment hole of the skinspaced equidistantly from the top edge; and wherein the attachment holesof the first and second gage lines of the first side edge of each panelare disposed and spaced on the first side edge so as to permitregistration with and attachment to the attachment holes of any one ofthe gage lines on the skin on an adjacent panel when the top edges ofthe adjacent panels are horizontally aligned.
 15. The system of claim14, wherein the widened edge member is an L-shaped member and is adaptedto abut the skin of its adjacent panel.
 16. The system of claim 14,wherein at least one of the plurality of skin attachment holes is unusedan includes a countersunk portion, and further including a plug adaptedfor placement in the unused hole, the plug including a head portion, thehead portion cooperating with the countersunk portion to define with theskin a generally continuous planar surface.
 17. The system of claim 14,including a plurality of intermediate stiffeners extending between thefirst and second side edges, and further wherein each of the attachmentholes extends through one of the stiffeners.
 18. The system of claim 17,wherein at least one of the attachment holes on the skin is unused andfurther including a plug having a head and being adapted for placementin the unused hole, the plug engaging at least a portion of thestiffener so that the plug head forms with the skin a generallyuninterrupted planar surface.
 19. The system of claim 17, wherein eachof the top, bottom, and intermediate stiffeners are Z-shaped members.20. A form system for use in constructing a concrete column form, theform system comprising: four panels, each panel including: a top edge; abottom edge; a first side edge, the first side edge including only apair of gage lines, the pair of gage lines including first and secondvertically oriented gage lines, each of the gage lines including aplurality of round holes, each of the round holes in the first gage linehorizontally aligned with an adjacent round hole in the second gageline; a second side edge; and a generally planar skin, the skinincluding a plurality of vertically oriented gage lines, each of thegage lines of the skin including a plurality of round holes, each holein each of the gage lines horizontally aligned with an adjacent hole ina next adjacent gage line; the first side edge of each of the panelsincluding widened edge member extending entirely rearwardly of the skin,a portion of the edge member forming an abutting surface adapted forabutting contact with the skin of an adjacent panel; and wherein theattachment holes of the first and second gage lines of the first sideedge of each panel are disposed to permit registration with andattachment to the attachment holes of any one of the gage lines on theskin of an adjacent panel when the top edges of the panel and theadjacent panel are aligned.
 21. The column form of claim 20, wherein thewidened edge member includes an L-shaped edge member adapted to abut theskin of its adjacent panel.
 22. The column form of claim 20, wherein thegage lines of the first side edge of each of the panels are spaced aparta first distance and further wherein the gage lines on the skin of eachof the panels are spaced apart a second distance, thereby permitting theattachment of the first side edge of each of the panels to the skin ofthe adjacent panel to be adjusted in increments equal to the firstdistance.
 23. The column form of claim 20, wherein each of the panelsincludes a plurality of Z-shaped stiffeners extending between the firstand second side edges, the Z-shaped stiffeners having a web shorter thanthe widened face.
 24. The form system of claim 20, wherein the first andsecond gage lines of the first side edge are spaced apart a distance A,each of the gage lines of the skin are spaced apart a distance B, thedistance B greater than the distance A, the distances A and B sized sothat the first side edge of each of the panels is attachable to the skinof the adjacent panel in a number of possible positions, and wherein thenumber of possible positions is equal to two times the number of gagelines on the skin.
 25. The form system of claim 20, wherein the firstand second gage lines of the first side edge are spaced apart a distanceA, each of the gage lines of the skin are spaced apart a distance B, thedistance B greater than the distance A, the distances A and B sized sothat the first side edge of each of the panels is attachable to the skinof the adjacent panel in a number of possible positions, the number ofpossible positions equal to two times the number of gage lines on theskin, and wherein the distances A and B are sized so that each of thenumber of possible positions is spaced apart relative to the skin of theadjacent panel by the distance A.
 26. The form system of claim 20,wherein the first and second gage lines of the first side edge arespaced apart a distance A, each of the gage lines of the skin are spacedapart a distance, the distance B greater than the distance A, thedistances A and B sized so that the first side edge of each of thepanels is attachable to the skin of the adjacent panel in a number ofpossible positions, the number of possible positions equal to two timesthe number of gage lines on the skin, and wherein a first one of thepossible positions is spaced from a next adjacent position by thedistance A, and wherein a second one of the possible positions is spacedfrom another next adjacent position by a distance equal to the distanceB minus the distance A.
 27. A method of constructing a concrete columnform having a desired one of a plurality of available cross-sectionaldimensions, the method comprising the steps of: choosing the desiredcross-sectional dimension to be constructed; providing a plurality ofform panels, each of the form panels having first and second side edges,top and bottom edges, and a generally planar interconnecting skin, thefirst side edge of each of the panels including a widened edge memberextending entirely rearwardly of the skin, a portion of the edge memberforming an abutting surface adapted for abutting contact with the skinof an adjacent panel; providing the first side edge of each of thepanels with a plurality of attachment holes arranged in a plurality ofvertically oriented gage lines, each of the attachment holes in a firstone of the plurality of gage lines horizontally aligned with an adjacentattachment hole in an adjacent and second one of the plurality of gagelines; providing the skin of each of the panels with a plurality ofattachment holes arranged in a plurality of vertically oriented gagelines, each of the attachment holes in the skin horizontally alignedwith an adjacent attachment hole in an adjacent gage line; aligning thetop edge and the bottom edge of each of the panels with the top edge andthe bottom edge of an adjacent panel; and securing the attachment holesfrom a selected one of the gage lines on the first side edge of eachpanel to the attachment holes from a selected one of the first andsecond gage lines on the skin of an adjacent panel.
 28. The method ofclaim 27, including the steps of: separating the first and second gagelines on the first side edge of each of the panels by a distance A; andseparating the plurality of gage lines on the skin by a distance B, thedistance B greater than the distance A.
 29. The method of claim 27,wherein the first and second gage lines of the first side edge arespaced apart a distance A, the plurality of gage lines of the skin arespaced apart a distance B, and securing the second gage line on thefirst side edge of each panel to the selected gage line on the skin ofthe adjacent panel, such that the panel is moved relative to the skin ofthe adjacent panel a distance equal to the distance A.
 30. The method ofclaim 27, wherein the first and second gage lines of the first side edgeare spaced apart a distance A, the plurality of gage lines of the skinare spaced apart a distance B, and securing the selected gage line onthe first side edge of each panel to a selected second gage line on theskin of the adjacent panel, such that the panel is moved relative to theskin of the adjacent panel a distance equal to the distance A.
 31. Themethod of claim 27, including the steps of providing a first set of theform panels and providing a second set of the form panels, the first setof the form panels having a first spacing between the first side edgegage lines and second spacing between the skin gage lines, the secondset of the form panels having a third spacing between the first sideedge gage lines and a fourth spacing between the skin gage lines,selecting a first pair of the form panels from the first set of the formpanels, selecting a second pair of the form panels from the second setof the form panels, and placing the form panel from the first pairbetween the form panels from the second pair.